+Note: virtio_blk *IS* supported by all our minimum platforms,
+ie. CentOS 5.3, Fedora 11, Debian.
+
+----------------------------------------------------------------------
+
+Qemu options -- After discussion with the KVM developers, they have
+recommended some flags which will improve the safety and reliability
+of KVM. Need to test that these also work under qemu (or at least, do
+no harm):
+
+-no-hpet HPET support is broken and should be disabled.
+
+-rtc-td-hack Keeps the rtc clock source track time correctly.
+
+-drive file=...,if=[ide|virtio],cache=off
+ cache=off is necessary to improve reliability in the
+ event of a system crash when writing.
+